How To Configure VPDN Groups to use Different RADIUS Servers

[SiBrasso]

Hi

The scenario here is I have a VPDN tunnel from 1 broadband provider which is using an old RADIUS and then I have anew VPDN tunnel from a different broadband provider who I want to put on a new RADIUS server.  The long term plan is to move all the broadband connections to the new provider and decommission the old RADIUS as part of the same project.  However I cant see for the life of me where/how I would configure this to happen.

Any Help would be greatly appreciated.   I’m doing this on a ASR-1001

Thanks

[SiBrasso · Accepted solution]

I have resolved this issue by doing the following:

Create the RADIUS servers:

radius server ISE01

 address ipv4 ###.###.###.### auth-port 1812 acct-port 1813

 timeout 10

 key ####

!

radius server ISE02

 address ipv4 ###.###.###.### auth-port 1812 acct-port 1813

 timeout 10

 key ####

Now create a group with those servers in

aaa group server radius VPDN-NewISE-Radz

 server name ISE01

 server name ISE02

Now create an authentication list with that group in

aaa authentication ppp NewISERadzAuthList group VPDN-NewISE-Radz none

Now add this authentication list to the Virtual-Template

interface Virtual-Template3

ppp authentication chap NewISERadzAuthList